在spring项目中,hibernate autowire没有遇到麻烦,找不到bean错误

时间:2011-04-11 15:44:38

标签: java hibernate spring autowired

我想尝试一下spring 3.0.5的<context:component-scan base-package />功能。

我在applicationContext中有这个条目:

<context:component-scan base-package="com.project.personal.admin.model"/>
<context:annotation-config />

我有一个经理类,知道如何创建任何POJO和DAO。

@Component("manager")
public class ManagerImpl implements ApplicationContextAware, Manager {

  ApplicationContext applicationContext;

  public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
    this.applicationContext = applicationContext;
  }

  public User CreateUser(){
    return (User) getInstance("user", User.class);
  }


  public UserDAO createUserDAO(){
    return (UserDAO) getInstance("userDAO", UserDAO.class);
  }
 //....
}
像Pjo一样的Pojo:

@Entity
@Table(name = "user", uniqueConstraints = {
@UniqueConstraint(columnNames = {"email"})})
@Component("user")
public class User {

  public User() {
    this.dateCreated = new Date();
  }


  @Id
  @GeneratedValue(generator = "uuid")
  @GenericGenerator(name = "uuid", strategy = "uuid.hex")
  @Column(name = "id", length = 32)
  private String id;
  @Column(name = "email", length = 150)
  private String email;

 //setters and getters
}

我的测试类就是这样

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations={"classpath:META-INF/test-project-admin-config.xml"})
@TransactionConfiguration(defaultRollback=true)
@Transactional
public class UserDAOImplTest {
    //@Autowired
    @Resource(name="manager")
    Manager manager;

    @Autowired
    UserDAO userDAO;

    public UserDAOImplTest() {
    }

    @Test
    public void testSave() {
        User u1 = manager.CreateUser();
        u1.setEmail("misterjojtoo@gmail.com");
        u1.setFullname("joseph djomeda");
        u1.setPassword("psaumedetdavid");
        userDAO.save(u1);
        User expResult = u1;

        User result = (User)userDAO.getById(u1.getId());

        Assert.assertEquals(expResult, result);
        Assert.assertEquals(expResult.getId(), result.getId());
     }

    }

我遇到了这个错误:

  

org.springframework.beans.factory.NoSuchBeanDefinitionException:找不到类型为[com.project.personal.admin.manager.Manager]的匹配bean依赖:期望至少有一个bean符合此依赖关系的autowire候选者。依赖注释:{@ org.springframework.beans.factory.annotation.Autowired(required = true)}

大部分时间我在applicationcontext中为每个类创建条目,并且它一直在工作,这次我想尝试包扫描。 这是我做得不好的事吗?我已经尝试了Autowired以及后来的资源。所以我没有想法

感谢您阅读本文。

1 个答案:

答案 0 :(得分:2)

确保您的Manager位于正确的包中(或者您的base-package设置正确)(我不会提到这一点,但在模型包中有经理似乎很可疑)